<template>
  <div>
    <!-- 面包屑导航区域 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片视图区域 -->
    <el-card class="box-card">
      <!-- 搜索与添加区域 -->
      <el-row :gutter="20">
        <el-col :span="8">
          <el-input
            v-model="queryInfo.qurey"
            placeholder="请输入内容"
            class="input-with-select"
            clearable
            @clear="getUserList"
          >
            <template slot="append">
              <el-button icon="el-icon-search" @click="getUserList"></el-button>
            </template>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="addDialogVisible = true"
            >添加用户</el-button
          >
        </el-col>
      </el-row>
      <!-- 用户列表区域 -->
      <el-table :data="userlist" border stripe>
        <el-table-column type="index"></el-table-column>
        <el-table-column label="姓名" prop="username"></el-table-column>
        <el-table-column label="邮箱" prop="email"></el-table-column>
        <el-table-column label="电话" prop="mobile"></el-table-column>
        <el-table-column label="角色" prop="role_name"></el-table-column>
        <el-table-column label="状态">
          <template slot-scope="scope">
            <div>
              <el-switch
                v-model="scope.row.mg_state"
                active-color="#13ce66"
                inactive-color="#ff4949"
                @change="userStateChanged(scope.row)"
              >
              </el-switch>
            </div>
          </template>
        </el-table-column>
        <el-table-column label="操作" width="180px">
          <template slot-scope="scope">
            <div>
              <el-tooltip content="分配角色" placement="top">
                <el-button
                  type="primary"
                  icon="el-icon-edit"
                  size="mini"
                  :enterable="false"
                  @click="showEditDialog(scope.row.id)"
                ></el-button>
              </el-tooltip>
              <el-button
                type="danger"
                icon="el-icon-delete"
                size="mini"
                @click="removeUserByID(scope.row.id)"
              ></el-button>
              <el-button
                type="warning"
                icon="el-icon-setting"
                size="mini"
                @click="setRole(scope.row)"
              ></el-button>
            </div>
          </template>
        </el-table-column>
      </el-table>
      <!-- 分页区域 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[1, 2, 5, 10]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
      >
      </el-pagination>
    </el-card>
    <!-- 添加用户对话框 -->
    <el-dialog
      title="添加用户"
      :visible.sync="addDialogVisible"
      width="50%"
      @close="dialogclose"
    >
      <!-- 内容主体区域 -->
      <el-form
        :model="addForm"
        :rules="addFormRules"
        ref="addFormRef"
        label-width="70px"
      >
        <el-form-item label="用户名" prop="username">
          <el-input v-model="addForm.username"></el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input v-model="addForm.password"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="addForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="addForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <!-- 底部区域 -->
      <span slot="footer" class="dialog-footer">
        <el-button @click="addDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="addUser">确 定</el-button>
      </span>
    </el-dialog>
    <!-- 修改用户对话框 -->
    <el-dialog title="修改用户" :visible.sync="editDialog" width="50%">
      <el-form
        :model="editForm"
        ref="editFormRef"
        label-width="70px"
        @close="editDialogClosed"
      >
        <el-form-item label="用户名">
          <el-input v-model="editForm.username" disabled></el-input>
        </el-form-item>
        <el-form-item label="邮箱">
          <el-input v-model="editForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机号">
          <el-input v-model="editForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="editDialog = false">取 消</el-button>
        <el-button type="primary" @click="editUserInfo">确 定</el-button>
      </span>
    </el-dialog>
      <!-- 分配角色对话框 -->
      <el-dialog
  title="分配角色"
  :visible.sync="setfenpei"
  width="50%"
  @close="fenpeiclosed"
 >
  <div>
    <p>当前用户：{{userInfo.username}}</p>
    <p>当前角色：{{userInfo.role_name}}</p>
    <p>分配新角色：
        <el-select v-model="selectedRoleId" placeholder="请选择">
    <el-option
      v-for="item in roleList"
      :key="item.id"
      :label="item.roleName"
      :value="item.id">
    </el-option>
  </el-select>
       </p>
  </div>
  <span slot="footer" class="dialog-footer">
    <el-button @click="setfenpei = false">取 消</el-button>
    <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
  </span>
</el-dialog>
  </div>
</template>

<script>
export default {
  data () {
    return {
      // 获取用户列表的参数对象
      queryInfo: {
        qurey: '',
        pagenum: 1,
        pagesize: 3
      },
      userlist: [],
      total: 0,
      // 控制添加用户对话框显示隐藏
      addDialogVisible: false,
      // 添加用户
      addForm: {
        username: '',
        password: '',
        email: '',
        mobile: ''
      },
      // 用户的验证
      addFormRules: {
        username: [
          {
            required: true,
            message: '请输入用户名',
            trigger: 'blur'
          },
          { min: 3, max: 10, message: '要3到10之间', trigger: 'blur' }
        ],
        password: [
          {
            required: true,
            message: '请输入密码',
            trigger: 'blur'
          },
          { min: 6, max: 15, message: '要6到15之间', trigger: 'blur' }
        ],
        email: [
          {
            required: true,
            message: '请输入邮箱',
            trigger: 'blur'
          }
        ],
        mobile: [
          {
            required: true,
            message: '请输入手机',
            trigger: 'blur'
          }
        ]
      },
      // 修改用户对话框的显示
      editDialog: false,
      // 查询到的用户信息
      editForm: {},
      //  分配对话框
      setfenpei: false,
      //  需要被分配角色的用户信息
      userInfo: {},
      roleList: [],
      // 已选中角色id值
      selectedRoleId: ''
    }
  },
  // 生命周期函数
  created () {
    this.getUserList()
  },
  methods: {
    async getUserList () {
      const { data: res } = await this.$http.get('users', {
        params: this.queryInfo
      })
      // console.log(res)
      if (res.meta.status !== 200) {
        return this.$message.error('获取用户列表信息失败')
      }
      this.userlist = res.data.users
      this.total = res.data.total
      // console.log(this.userlist)
    },
    // 监听pagesize改变的事件
    handleSizeChange (newSize) {
      // console.log(`每页 ${newSize} 条`)
      this.queryInfo.pagesize = newSize
      this.getUserList()
    },
    // 监听页面
    handleCurrentChange (newPage) {
      // console.log(`当前页: ${newPage}`)
      this.queryInfo.pagenum = newPage
      this.getUserList()
    },
    // 修改用户状态
    async userStateChanged (userinfo) {
      // console.log(userinfo)
      const { data: res } = await this.$http.put(
        `users/${userinfo.id}/state/${userinfo.mg_state}`
      )
      if (res.meta.status !== 200) {
        userinfo.mg_state = !userinfo.mg_state
        return this.$message.error('更新用户状态失败')
      }
      this.$message.success('更新状态成功')
    },
    // 添加用户对话框关闭时间
    dialogclose () {
      this.$refs.addFormRef.resetFields()
    },
    // 表单预校验
    addUser () {
      this.$refs.addFormRef.validate(async (valid) => {
        if (!valid) return
        // 可以添加用户的网络请求
        const { data: res } = await this.$http.post('users', this.addForm)
        if (res.meta.status !== 201) {
          this.$message.error('添加用户失败')
        }
        this.$message.success('添加用户成功')
        this.addDialogVisible = false
        // 重新获取用户数据
        this.getUserList()
      })
    },
    // 修改用户功能
    async showEditDialog (id) {
      const { data: res } = await this.$http.get('users/' + id)
      if (res.meta.status !== 200) {
        return this.$message.error('查询失败啦')
      }
      this.editForm = res.data
      this.editDialog = true
    },
    // 修改用户对话框关闭
    editDialogClosed () {
      this.$refs.editFormRef.resetFields()
    },
    editUserInfo () {
      this.$refs.editFormRef.validate(async (valid) => {
        if (!valid) return
        const { data: res } = await this.$http.put(
          'users/' + this.editForm.id,
          { email: this.editForm.email, mobile: this.editForm.mobile }
        )

        if (res.meta.status !== 200) {
          return this.$message.error('修改失败哦')
        }

        // 关闭对话框
        this.editDialog = false
        // 刷新数据
        this.getUserList()
        // 提示修改成功
        this.$message.success('修改成功啦')
      })
    },
    // 删除用户功能
    async removeUserByID (id) {
      const confirmResult = await this.$confirm(
        '此操作将永久删除该用户, 是否继续?',
        '提示',
        {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }
      ).catch((err) => err)
      // 如果用户确认删除，返回confirm
      // 取消删除cancel
      if (confirmResult !== 'confirm') {
        return this.$message.info('已经取消啦')
      }
      const { data: res } = await this.$http.delete('users/' + id)
      if (res.meta.status !== 200) {
        return this.$message.error('删除用户失败')
      }
      this.$message.success('删除成功')
      this.getUserList()
    },
    // 展示用户对话框
    async setRole (userInfo) {
      this.userInfo = userInfo

      // 展示对话框之前获取所有角色
      const { data: res } = await this.$http.get('roles')
      if (res.meta.status !== 200) {
        return this.$message.error('获取角色失败')
      }

      this.roleList = res.data
      this.setfenpei = true
    },
    // 点击按钮分配角色
    async saveRoleInfo () {
      if (!this.selectedRoleId) {
        return this.$message.error('分配角色失败')
      }

      const { data: res } = await this.$http.put(`users/${this.userInfo.id}/role`, {
        rid: this.selectedRoleId

      })
      if (res.meta.status !== 200) {
        return this.$message.error('更新角色失败')
      }
      this.$message.success('更新成功')
      this.getUserList()
      this.setfenpei = false
    },
    // 对话框关闭事件
    fenpeiclosed () {
      this.selectedRoleId = ''
      this.userInfo = {}
    }
  }
}
</script>

<style lang="less" scoped>
.el-table {
  margin-top: 15px;
  font-size: 12px;
}
</style>
